Title:
MAGNETIC MARKER
Document Type and Number:
WIPO Patent Application WO/2023/182463
Kind Code:
A1
Abstract:
A magnetic marker (1) is disposed on a road (3) so that the magnetic marker can used for vehicular driving assistance. The magnetic marker is a columnar magnet having a shape such that stress from a force acting from the outside is caused to be non-uniform, thereby causing the generation of locations where the stress is concentrated. The magnetic marker (1) tends to split into a plurality of small pieces after being broken due to the concentration of stress. When pavement damage occurs in the periphery of the magnetic marker (1), it is possible that some of the small pieces being separated will cause the remaining small pieces to remain at the side of the road and the magnetic performance thereof will be maintained, increasing the probability that the functionality of the magnetic marker (1) can be maintained even when the pavement is damaged.
Inventors:
YAMAMOTO MICHIHARU (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
Application Number:
PCT/JP2023/011655
Publication Date:
September 28, 2023
Filing Date:
March 23, 2023
Export Citation:
Assignee:
AICHI STEEL CORP (JP)
International Classes:
G08G1/00; E01C1/00; H01F7/02
Domestic Patent References:
| WO2021106878A1 | 2021-06-03 |
Foreign References:
| JP2021095841A | 2021-06-24 |
Attorney, Agent or Firm:
OIKE Tatsuya (JP)
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